WizardLM-2 8x22B and Nemotron 3.5 Lightning are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
WizardLM-2 8x22B, from Microsoft, has a 65,535-token context window and is priced at $0.62/M tokens input, $0.62/M tokens output on OpenRouter.
Nemotron 3.5 Lightning, from Nvidia, has a 262,144-token context window and is priced at $0.08/M tokens input, $0.20/M tokens output on OpenRouter.